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Total articles found: 3 Reset Search
  • Updated on: Apr 15, 2010

    What Are The Alternatives To Using Global Variables?

    It is well known that global variables are generally a bad thing. Although they can seem convenient, they have a number of major drawbacks. This lesson outlines the reasons you may wish to find alternatives to using globals and then shows a number of options in revTalk that allow sharing of da...

    Manual How To - Step-By-Step Guides To Tasks In LiveCode
    Tags command, custom property, function, getProp, global, local, script local, setProp, virtual
  • Updated on: Feb 14, 2011

    Vision: How do I Edge Detect an Image?

    This lesson describes how to detect edges in an image, using three variations of an edge detection mask. Sample code and example screen captures are provided.

    Manual How To - Step-By-Step Guides To Tasks In LiveCode
    Tags array, local, put
  • Updated on: Mar 23, 2011

    Vision: How do I Threshold an Image?

    This lesson describes how to threshold an image. Sample code and example screen captures are provided.

    Manual How To - Step-By-Step Guides To Tasks In LiveCode
    Tags array, local, put
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